744775118

Fixed Inductors Overview

The Würth Elektronik 744775118 is a WE-PD2 series surface-mount power inductor with an 18 µH nominal inductance and ±10% tolerance. It features an unshielded drum core construction using wirewound technology on a ferrite substrate. The component supports a maximum DC current of 1.89 A and a saturation current of 2.36 A, with a maximum DC resistance of 100 mΩ. Operating within a temperature range of -40°C to +125°C, it measures 7.8 mm x 7 mm x 5 mm and offers a self-resonant frequency of 10 MHz.

Fixed Inductors Feature Summary

• Unshielded drum core design for high-current power applications
• Wirewound ferrite construction ensuring stable performance
• Surface-mount package optimized for automated PCB assembly

Fixed Inductors Applications

• DC-DC converter output filtering
• Power supply input chokes
• General-purpose power electronics circuits

Fixed Inductors Procurement Notes

Verify the specific ordering suffix against official Wurth Elektronik documentation to confirm exact electrical tolerances and packaging configurations. Ensure that the selected variant matches the required saturation current and DC resistance specifications for the target application. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and current production status before finalizing procurement orders.

Fixed Inductors Selection Notes

Select this component based on its 18 µH inductance value and 1.89 A continuous current rating. Consider the unshielded magnetic field characteristics when determining placement relative to sensitive signal traces. Evaluate the thermal performance within the -40°C to +125°C operating range to ensure reliability under expected load conditions and ambient temperatures.

Fixed Inductors Part Context

This part belongs to the WE-PD2 series of SMD power inductors from Würth Elektronik. The series utilizes a drum core geometry designed for efficient energy storage in switching power supplies. These components are engineered for robust performance in compact electronic designs requiring reliable power filtering and energy conversion capabilities.

Fixed Inductors Replacement Considerations

Consult official Wurth Elektronik substitution guides for verified alternatives. No public substitute part numbers are confirmed in available data.